Improvement in paper vessels



W. 0. RITCHIE. Paper-Vessel.

No. 215,976. Patented May 211879.

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WILLIAM G. RITCHIE, OF CHICAGO ILLINOIS.

IMPROVEMENT IN PAPER VESSELS.

Specification forming part of Letters Patent No. 215,976., dated May 27,1879; application filed June 10, 1878.

To all whom it may concern:

Be it'known that I, WILLIAM G. RITCHIE, of the city of Chicago, State ofIllinois, have invented certain new and useful Improvements in PaperVessels, of which the following, taken together with the accompanyingdrawings, is a full and accurate specification.

My invention relates to flaring vessels made of finished paper; andconsists in the features of construction hereinafter fully described,and pointed out in the claim.

Figure 1 of the drawings shows a flaring paper vessel with portions ofthe body, bottom, and top broken away to clearly reveal the details ofconstruction, and Fig. 2 is a side view of the bottom before it isapplied to the vessel.

The body A of the vessel is flaringthat'is, of greater diameter at oneend than at the other. It is formed of a piece of finished paper, cut,bent, and sea-med to give the required shape. B is the bottom, alsoformed of a single piece of finished paper, but without seam, to extendupward to embrace the lower margin of the body, constituting an outerband, continuous with the bottom proper. It is made from an originallyflat disk by gathering, turning up, and compressing the margin thereof,so that when applied to the body A its rim is vertical, or more nearlyvertical than the sides of the body. In applying it the edge of the rimis therefore expanded by a wedging action of the flaring body openingsomewhat the minute gathers or foldsin the rim. The rim has suflicientretractile force when thus enlarged to cause it to tightly embrace thebody, giving broad union or contact to the surfaces of the two parts,and holding itself firmly in place while the glue applied between themis setting.

When completed the vessel presents a perfectly-smooth interior, and isstrengthened not only by the body of material included in the exteriorband, but by this material greatly fortified by its continuous unionwith the bottom, of which, as described, it forms a part. Asimilarly-formed bottom applied to theinterior, which is common,obviously affords no such added strength to the vessel.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

The herein-described method of forming and securin g the bottoms ofpaper vessels-to wit, by forming said bottom with a marginal flange lessflaring than the sides of the vessel, and forcing the same upon saidvessel with paste or glue, whereby said flange is expanded to conform tothe vessel-sides and insure a close and solid joint.

W. G. RITCHIE. Witnesses:

M. E. DAYTON, F. W. SMITH.

